How an Airport Improved Runway Drainage with FRP Manhole Covers

Airports require efficient drainage systems to prevent water accumulation on runways, which can lead to skidding, hydroplaning, and flight delays. A major international airport was facing frequent drainage issues due to outdated metal and concrete manhole covers, which corroded, cracked under aircraft weight, and became safety hazards. To address this, the airport authority decided to replace them with FRP (Fiber Reinforced Plastic) manhole covers, leading to significant improvements.

Challenges Faced by the Airport

1. Water Logging on Runways – Poor drainage due to broken or blocked manhole covers caused standing water, increasing flight safety risks.

2. Corrosion & Damage – Metal covers corroded over time due to jet fuel exposure, chemicals, and extreme weather, leading to frequent replacements.

3. Heavy & Difficult to Maintain – Concrete covers were heavy and prone to cracking, requiring frequent repairs and increasing operational downtime.

4. Safety Risks for Aircraft & Ground Staff – Displaced or broken covers posed risks to both aircraft movement and ground personnel.

The Solution: FRP Manhole Covers

To enhance runway drainage and overall safety, the airport installed FRP manhole covers, which provided:

• Superior Drainage Efficiency – Custom perforated FRP covers improved water flow, preventing water accumulation on runways.

• Corrosion Resistance – FRP does not corrode or degrade when exposed to jet fuel, de-icing chemicals, or extreme weather conditions.

• Lightweight & Easy to Maintain – Unlike concrete covers, FRP covers are lightweight, making maintenance faster and safer for airport crews.

• High Load-Bearing Capacity – Engineered to withstand aircraft loads, FRP covers provided long-lasting durability without cracking or breaking.

• Slip-Resistant Surface – Ensuring the safety of ground staff by reducing the risk of slipping, even in wet conditions.

The Results

By switching to FRP manhole covers, the airport experienced:

 ✔ 60% improvement in drainage efficiency

 ✔ Zero waterlogging incidents on runways

 ✔ Reduction in maintenance costs by 50%

 ✔ Increased safety for aircraft and ground crew

This case highlights how FRP manhole covers offer an advanced, cost-effective, and long-term solution for critical airport infrastructure, ensuring smooth and safe runway operations.